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Posted: 8/9/2005 8:37:09 AM EDT
I searched, but did not find this information.
What are the differences between the A1 and A2 FSB? 
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Posted: 8/9/2005 8:37:58 AM EDT
[#1]
subscribing
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Posted: 8/9/2005 8:42:32 AM EDT
[#2]
I do believe (I'm sure the experts will correct me) that the A1 front sight has two main differences;
-The A1 used a pencil barrel so the inside diameter is smaller on the sight. -the sight itself uses 5 as opposed to 4 detents, so a different front sight tool is required. Other than that they're basically identical. |
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Posted: 8/9/2005 8:54:17 AM EDT
[#3]
Leg has it correct.
A1 Front sight pin is round, with 5 detents (1 moa per click for a 20" barrel) A2 Front sight pin is square, with 4 detents (1.25moa per click for a 20" barrel). Plus the barrel hole on the A1 is .625" IIRC vs the .72" for the A2 barrels. |
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